单项选择题

A．Synthetic fuel.
B．Solar energy.
C．Alcohol.
D．Electricity.
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单项选择题
A．The benefits of strong business competition.B．A proposal to lower the cost of production.C．Complaints about the expense of modernization.D．Suggestions concerning new business strategies.
A．The benefits of strong business competition.
B．A proposal to lower the cost of production.
C．Complaints about the expense of modernization.
D．Suggestions concerning new business strategies.
单项选择题
A．It’s too broad to cope with.B．It’s a bit outdated.C．It’s controversial.D．It’s of little practical value.
A．It’s too broad to cope with.
B．It’s a bit outdated.
C．It’s controversial.
D．It’s of little practical value.
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